Highly selective radical isothiocyano-chalcogenization of alkenes with NH<sub>4</sub>SCN in water
作者:Chao Xu、Ze He、Xiaokang Kang、Qingle Zeng
DOI:10.1039/d1gc02021h
日期:——
the presence of catalytic amounts of molecular iodine and stoichiometric potassium persulfate, a green, highly chemoselective, regioselective and cis-selective radical isothiocyano-chalcogenization of alkenes with NH4SCN in water is disclosed. This three component reaction features high selectivities, an environmentally benign process, mild conditions, high yields, excellent functional-group tolerance
Catalyst-Free Isothiocyanatoalkylthiation of Styrenes with (Alkylthio)pyrrolidine-2,5-diones and Trimethylsilyl Isothiocyanate
作者:Hua Tian、Jipan Yu、Haijun Yang、Changjin Zhu、Hua Fu
DOI:10.1002/adsc.201501181
日期:2016.6.2
A simple and efficient catalyst‐free method for isothiocyanatoalkylthiation of styrenes has been developed. The protocol uses (alkylthio)pyrrolidine‐2,5‐diones and trimethylsilyl isothiocyanate as the isothiocyanatoalkylthiolating reagents, dimethylformamide (DMF) as the solvent, and the reactions were completed within one hour with tolerance of some functional groups. No catalyst and additive were